#!/usr/bin/env python
# -*- coding:utf-8 -*-

# file:homework4_5.py
# author:wmf
# datetime:2021/4/12 15:06
# software: PyCharm
'''
this is function description
'''
# import module your need

with open('secret.txt','r') as f:
    info = f.readlines()

with open('copy.txt','w') as f:
    for x in info:
        f.write(x)
    print("copy成功")